Just a crazy question here. What is the point for all that circuitry for the TX pin to the RS485 ?
Why didn't you just route the TX to the DI pin?
Are you aware that ESP has a driver for RS485, in which you can simply supply the Tx, Rx & RE/DE pins?
Search found 477 matches
- Fri Jun 09, 2023 3:50 am
- Forum: Hardware
- Topic: Auto switching RS485 using SP3485 chip using ESP32C3 on UART0. How to make it work?
- Replies: 2
- Views: 1067
- Sun Jun 04, 2023 1:20 pm
- Forum: Hardware
- Topic: ESP32-S3 seemingly rebooting every few seconds after USB connection
- Replies: 6
- Views: 3657
Re: ESP32-S3 seemingly rebooting every few seconds after USB connection
FWIW. I had the same issue. Holding down GPIO0 alone did not do the trick for me. I had to hold down GPIO0 & EN, then release EN.
- Thu Jun 01, 2023 12:01 pm
- Forum: General Discussion
- Topic: ESP32-S3-WROOM factory USB state before Firmware is loaded
- Replies: 4
- Views: 2020
ESP32-S3-WROOM factory USB state before Firmware is loaded
We have been using the ESP32-S3-DevKitC-1 v1.1 to help develop one of our new products. We are using the "USB" connector to flash the unit this entire time, and has worked great. Our first pass we made 100 pcb's using the ESP32-S3-WROOM-1U-N16 module. We did not put any headers on the board to flash...
- Tue May 30, 2023 2:51 am
- Forum: General Discussion
- Topic: Reading external USB mass storage
- Replies: 2
- Views: 915
Re: Reading external USB mass storage
I think this is what you need.
https://github.com/espressif/esp-idf/tr ... e/tusb_msc
https://github.com/espressif/esp-idf/tr ... e/tusb_msc
- Sun May 21, 2023 12:26 pm
- Forum: Showcase
- Topic: Boot Linux on ESP32-S3
- Replies: 15
- Views: 97585
Re: Boot Linux on ESP32-S3
awesome! Next time I do my online order I'll pick one up and try.
- Sat May 20, 2023 5:21 pm
- Forum: General Discussion
- Topic: ESP32 C3 delay between SPI transactions
- Replies: 2
- Views: 929
Re: ESP32 C3 delay between SPI transactions
Can you try these 2 things to see if it helps.
trasactionHandle.flags = 0;
.duty_cycle_pos = 0
trasactionHandle.flags = 0;
.duty_cycle_pos = 0
- Thu May 18, 2023 4:24 am
- Forum: Showcase
- Topic: Boot Linux on ESP32-S3
- Replies: 15
- Views: 97585
Re: Boot Linux on ESP32-S3
Thanks rudi for the update.
I have to ask... Wonder why they didn't choose 240mhz. looks like they have it set to 160mhz.
Lastly, though it boots, what can we really do with such limited ram?
I have to ask... Wonder why they didn't choose 240mhz. looks like they have it set to 160mhz.
Lastly, though it boots, what can we really do with such limited ram?
- Tue May 16, 2023 4:21 am
- Forum: Hardware
- Topic: WROVER module with LAN8720A
- Replies: 4
- Views: 1421
Re: WROVER module with LAN8720A
I did this many years ago, so I am not sure what has changes in the software. But back then you could configure to use GPIO0 as the clk. The problem with this was that it did not allow uploading the firmware automatically. You had to manually keep GPIO0 low then reset to put it in bootloader mode fo...
- Tue May 16, 2023 12:01 am
- Forum: Hardware
- Topic: WROVER module with LAN8720A
- Replies: 4
- Views: 1421
Re: WROVER module with LAN8720A
You can use GPIO0
- Mon May 15, 2023 3:25 am
- Forum: ESP32 Arduino
- Topic: Async Websocket client
- Replies: 4
- Views: 2673